The Sigma Group, LLC.

Sigma Group Partners


Doug Lind

Specializes in executive coaching and his 40 years of experience has been with individuals at the general management level - CEO's, COO's, CFO's, Group Executives, Division Presidents and others on the senior team.

Don Russell

Donald Russell is a trusted advisor to C Level executives. He has been the managing partner of The Sigma Group since 2010. Don began his career as a commercial lender with National Westminster Bank, USA. Don Russell was active in investment banking, private equity and merchant banking.

Lynn Schuster

Senior Executive Coaching & Business Consulting specializations include: executives/organizations in transition; building high performing senior teams; strategy/leadership alignment optimizing client value by integrating business with leadership goals.

Loren Comstock

Coaching specialties include executive assessment and feedback, strengthening leadership presence and competencies, building effective empowered teams, advising executives in transition to ensure early success.